Does not include popular talks or industrial presentations

  • 1. Van Heerden, E. “Structure Function Relationship in Lipase”. AECI symposium. August 1996. Modderfontein.
  • 2. Van Heerden, E. “Surface kinetics of the lipase from Aspergillus niger” Symposium between UOFS and the Potchefstoom University of the Christian Higher Education. June 1997. Bloemfontein.
  • 3. Van Heerden, E. To University or to Technicon – that is the Question. FRD evaluation of environmental Health programmes. June 1998.
  • 4. Van Heerden, E. Detecting systems: Gel electrophoresis and DNA structure. PCR workshop for Veterinarians. (25 and 26 October 2000 – Bloemfontein).
  • 5. Bragg, RR (presenting), Van Heerden, E, and Albertyn, J, Carlisle, E, Van Zyl, AE. (February, 2001). Laboratory observations on residue levels and efficacy of Fosfomycin. Fosbac plus Tylosin product launch, Pretoria.
  • 6. De Smidt, O (presenting), Bragg, RR, Van Heerden, E, and Albertyn, J. (2-5 April 2002) Cloning and characterisation of the capsule transport gene region of Haemophilus paragallinarum. 12th Bienniel Congress of the South African Society of Microbiology, Bloemfontein.
  • 7. Drilling Active Faults in South Africa Mines (aka. DAFSAM) Workshop to be held in Parys (23 to 26 Sept 2002). Does crustal seismicity enhance subsurface microbial activity and growth?
  • 8. Lin, LiHung J, Mislowac, B, Pray, TJ, Devlin S, Onstott, TC, Pfiffner, S, Peacock, A, White, DC, Davis, K, Phelps, T, Moser, D, Fredrickson, J, Gihring, T, Brockman, F, Kieft, T, McCuddy, S, Boone, D, Bonin, A, Pratt, L, Boice, E, Fong, J, Sherwood Lollar, B, Ward, J, Slater, G, Lippmann, J, Stute, M,Schloesser, P, Southam, G, Lengke, M, Balkwill D, Trimarco, E, Litthauer D, Van Heerden, E, Davidson, M, Reye, C, The Witwatersrand Deep Microbiology Group**.
  • 9. Van Heerden, E, Litthauer, D, and Onstott, TC. Life in the Free State – Extremozymes. 18th Congress South African Society for Biochemistry and Molecular Biology, Pretoria. 6-9 July 2003.
  • 10. Opperman, DJ* and Van Heerden, E. Aerobic chromate reduction by Thermus scotoductus strain SA-01. SASBMB XIXth Conference, 16-20 January 2005, Stellenbosch, South Africa.
  • 11. J van Marwijk* and E van Heerden. Vanadium reduction by bacterial isolates from SA mine soil samples". SASBMB XIXth Conference, 16-20 January 2005, Stellenbosch, South Africa.
  • 12. Piater, LA* and Van Heerden, E. “Is there life out there?”. The National Science Week 2005, Department of Science and Technology and the University of the Free State, 11 May 2005.
  • 13. Piater, LA and Van Heerden, E*. Delmas Water Crisis – Real Time PCR and its possibilities as water monitoring tool. DWAF DD/AD meeting, ABSA Conference Centre, Pretoria, 24-25 November 2005.
  • 14. Raji, AI*, Möller, C, Litthauer, L, Van Heerden, E, and Piater, LA. (2006) Bacterial Biofilm Diversity of Deep Mines in South Africa. In: Lecture Abstracts of the SASBMB XXth Conference, 3 -6 July 2006, Pietermaritzburg, South Africa, L65.
  • 15. Visser, DF, Hennessy, F, Chhiba, VP, Lakay, FM, Jordaan, J, Louw, M, Joubert, L, Van Heerden, E, Piater, LA, Möller, C, Litthauer, L, and Brady, D. (2006) Screening for novel enzyme activities in deep terrestrial environments: application of metagenomics and high throughput screening for novel enzyme isolation. In: Lecture Abstracts of the SASBMB XXth Conference, 3-6 July 2006, Pietermaritzburg, South Africa, L36.
  • 16. Bester, PA *, Piater, LA and Van Heerden, E*. Ubiquitous nature of iron reductase from Thermus scotoductus SA-01. Oral presentation: Bio-08, 21-25 January 2008, Grahamstown, South Africa.
  • 17. Jordan, R *, Piater, LA*, and Van Heerden, E. Chromate reduction by metal-resistant bacteria isolated from mining water. Oral presentation: Bio-08, 21-25 January 2008, Grahamstown, South Africa.
  • 18. Van Marwiyk, J. * and Van Heerden, E. Characterisation of gold nanoparticles produced by Thermus scotoductus SA-01. Oral presentation: Bio-08, 21-25 January 2008, Grahamstown, South Africa.
  • 19. Fuku, SL*, Piater, LA, and Van Heerden, E. Biological synthesis of gold nanoparticles by yeast. Oral presentation: Bio-08, 21-25 January 2008, Grahamstown, South Africa.·
  • 20. Gounder, K *, Piater, LA, Van Heerden, E, and Litthauer, D*. Pyrosequencing of the extremophile Thermus scotoductus SA-01. Oral presentation: Bio-08, 21-25 2008 January, Grahamstown, South Africa.
  • 21. Muller, WJ *, Van Heerden, E, and Piater, LA*. Isolating a novel thermostable cytochrome P450 from the extremophile Thermus scotoductus SA-01. Short oral presentation: Bio-08, 21-25 January 2008, Grahamstown, South Africa.
  • 22. J Lippmann-Pipke, J Erzinger, M Zimmer, Chr. Kujawa, E van Heerden, D Litthauer, A Bester, S Niedermann, M Boettcher, G van Aswegen, H Moller, V Heesakkers, Z Reches. Striking correlation between geogas data and mining induced seismicity in the world’s deepest gas lab, TauTona Gold Mine, SA. Poster presentation. 5th Inkaba ye Africa Scientific Workshop, 22-23 October 2007, Wild Coast Sun, South Africa.
  • 23. E van Heerden, L Piater and D Litthauer. BioPad - UFS Metagenomics Platform: Endless opportunities! Oral presentation. Bio2Biz SA 2008 - Biotech Plugged into Bussiness, 15-17 September 2008, Johannesburg, South Africa.
  • 24. Opperman, DJ, Sewell, T, Piater, LA*, Litthauer, D, and Van Heerden, E. An Old Yellow Enzyme homologue from Thermus scotoductus SA-01. Oral presentation: CATSA 2008 Biocatalysis Breakaway, 9–11 November 2008, Parys, South Africa.
  • 25. Phillip Armand Bester, Derek Litthauer, Lizelle Anne Piater and Esta van Heerden. Functional and Structural Analysis of a Ferric Reductase. SASBMB 2010 – 22nd Congress of the South African Society for Biochemistry and Molecular Biology. Bloemfontein, South Africa. 17-20 January 2010. (Talk)
  • 26. Robert Jordan, Elsabé Botes, Mary DeFlaun, Jim Howel, Robert Borch, and Esta van Heerden. Hexavalent Chromium Reduction In Fixed-Film Up-Flow Bioreactors. SASBMB 2010 – 22nd Congress of the South African Society for Biochemistry and Molecular Biology. Bloemfontein, South Africa. 17-20 January 2010. (Talk)
  • 27. Abitha Jugdave, Derek Litthauer, Jacobus Albertyn and Esta van Heerden. Microbial Biodiversity and the Biome’s Abilities. SASBMB 2010 – 22nd Congress of the South African Society for Biochemistry and Molecular Biology. Bloemfontein, South Africa. 17-20 January 2010. (Talk)
  • 28. E van Heerden and P Price. Deep Biogenic Gas. 10-11 February 2011, Cape Town. Petroluem Agency South Africa – Invited talk.
  • 29. Esta van Heerden. Probing the Deepest limits of the Earth’s biosphere. 25 February 2011. Fosil Fuel Foundation Free State Coal Indaba. Maccauvlei, Vereeniging.
  • 30. Esta van Heerden. Microbial Monitoring and Implications for the future. 3rd Orange River Basin symposium. Bloemfontein 8-9 June 2011.
  • 31. Botes, E, Ojo, AO, Maleke, M, Osman, A, and Van Heerden, E. (2011). Microbial diversity of medicinal clay samples from Eastern Free State Region. African Clay and Clay Minerals Research Group (ACCMRG). First International conference on Clays and Clay Minerals in Africa and Second international conference on Geophagia in Southern Africa. Bloemfontein, 19-21 October 2011.
  • 32. E van Heerden. Deep Subsurface Biodiversity. Remarkable Novelty and Flexibility despiteproposed Geochemical constraints.Will they save the world?. Water in Mining Water Management in Mining Africa Conference, 29 and 30 November 2011. Johannesburg.
  • 33. M Erasmus, F Otto, TC Onstott, B Sherwood Lollar, F Colwell, TJ Phelps, MF DeFlaun, T Surridge and E van Heerden. The Influence of CCS on the Deep Subsurface Biome. Second South African CCS Week, Carbon Capture and Storage Conference. Midrand, South Africa. 24-28 October 2012.
  • 34. E van Heerden. To Infinity and beyond. Water in Mining Water Management in Mining Africa Conference, 20-21 November 2012. Johannesburg, South Africa
  • 35. Van Heerden, E, Tlalajoe, N, Brzuszkiewics, E, Berenguer, JC, Onstott, TC, Lau, M, Kuloyo, O, Linage-Alvarez, B, Cason, E, Erasmus, M, and Litthauer, D. 6-9 July 2014. Exploring deep mine biodiversity plasticity and adaptability. Paper delivered at the 24th Biennial Congress of the South African Society of Biochemistry and Molecular Biology, Worcester, South Africa.
  • 36. Erasmus, M, Chen, J, Surridge, T, Van der Hoven, WG, and Van Heerden, E. 6-9 July 2014. Geological carbon sequestration and its influence on subsurface microbial biodiversity and metabolic carbon cycling. 24th Biennial Congress of the South African Society of Biochemistry and Molecular Biology, Worcester, South Africa.
  • 37. Van Heerden, E. 29 September-1 October 2014. Exploring anthropogenic biome diversity – Testing and measurement of parameters. Plenary presented at the Test and Measurement Conference and Workshop, Muldersdrift, South Africa.
  • 38. E van Heerden and M DeFlaun, “Innovative” and “new” technologies to consider in mine water treatment Water Management in Mining, IQPC Africa, 10-11 February 2015. Johannesburg, South Africa.
  • 39. ED Cason, TC Onstott, R Harris and E van Heerden. Deep mine subsurface research – Diversity, geochemistry and (meta)genomics. Research Talk presented at ICDP DSeis Worskshop “Drilling into Seismogenic Zones of M2.0-5-5 earthquakes in South African Gold Mines, Potchefstroom, South Africa. 31 October to 3 November 2015.
  • 40. J Chen, J Castillo, ED Cason, L Esterhuizen* and E van Heerden. Scoping study on current emerging contaminants, geochemistry and microbial diversity influencing quality of water sources in the Free State Province. African Water Symposium October 2015.
  • 41. Moloantoa KM, Castillo J, and Van Heerden, E. biogeochemical of sulfate reducing communities enriched from mine drainages. Conference: South African young water professionals. CSRI-Pretoria. November 2015.

FACULTY CONTACT

Faculty Manager: Ms Lee-Ann Frazenburg
T: +27 51 401 3199
E: damonsle@ufs.ac.za

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T: +27 51 401 2531
E: lottere@ufs.ac.za

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